If coefficient of performance of a refrigarator is β and heat absorbed from refrigarated spac

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11.Thermodynamics

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If coefficient of performance of a refrigarator is $\beta $ and heat absorbed from refrigarated space is $Q$, then work done on the system is

A

$\beta Q$

B

$\left( {1 + \beta } \right)Q$

C

$\frac{Q}{\beta }$

D

$\frac{Q}{{\beta - 1}}$

Solution

$\beta=\frac{(Q)}{w} \Rightarrow w=\frac{Q}{\beta}$

Standard 11

Physics

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